<template>
  <div class="app-container">
    课程列表
    <!--查询表单-->
    <el-form :inline="true" class="demo-form-inline">
      <el-form-item>
        <el-input v-model="courseQuery.title" placeholder="课程名称" />
      </el-form-item>

      <el-form-item>
        <el-select
          v-model="courseQuery.status"
          clearable
          placeholder="课程状态"
        >
          <el-option :value="Normal" label="已发布" />
          <el-option :value="Draft" label="未发布" />
        </el-select>
      </el-form-item>

      <el-button
        type="primary"
        icon="el-icon-search"
        @click="getList()"
      >查询</el-button
      >
      <el-button type="default" @click="resetData()">清空</el-button>
    </el-form>

    <!-- 表格 -->
    <el-table
      v-loading="listLoading"
      :data="list"
      element-loading-text="数据加载中"
      border
      fit
      highlight-current-row
    >
      <el-table-column label="序号" width="70" align="center">
        <template slot-scope="scope">
          {{ (page - 1) * limit + scope.$index + 1 }}
        </template>
      </el-table-column>

      <el-table-column prop="title" label="课程名称" width="80" />

      <el-table-column label="课程状态" width="80">
        <template slot-scope="scope">
          {{ scope.row.status === 'Normal' ? "已发布" : "未发布" }}
        </template>
      </el-table-column>

      <el-table-column prop="lessonNum" label="课时数" />

      <el-table-column prop="gmtCreate" label="添加时间" width="160" />

      <el-table-column prop="viewCount" label="浏览数量" width="60" />

      <el-table-column label="操作" width="200" align="center">
        <template slot-scope="scope">
          <router-link :to="'/teacher/edit/' + scope.row.id">
            <el-button
              type="primary"
              size="mini"
              icon="el-icon-edit"
            >编辑课程基本信息</el-button
            >
            <el-button
              type="primary"
              size="mini"
              icon="el-icon-edit"
            >编辑课程大纲</el-button
            >
          </router-link>
          <el-button
            type="danger"
            size="mini"
            icon="el-icon-delete"
            @click="removeDataById(scope.row.id)"
          >删除课程信息</el-button
          >
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页 -->
    <el-pagination
      :current-page="page"
      :page-size="limit"
      :total="total"
      style="padding: 30px 0; text-align: center"
      layout="total, prev, pager, next, jumper"
      @current-change="getList"
    />
  </div>
</template>

<script>
import course from '@/api/edu/course'

export default {
  // 写核心代码位置
  // data:{
  // },
  data() {
    // 定义变量和初始值
    return {
      list: null, // 查询之后接口返回集合
      page: 1, // 当前页
      limit: 10, // 每页记录数
      total: 0, // 总记录数
      courseQuery: {} // 条件封装对象
    }
  },
  created() {
    // 页面渲染之前执行，一般调用methods定义的方法
    // 调用
    this.getList()
  },
  methods: {
    // 创建具体的方法，调用teacher.js定义的方法
    // 讲师列表的方法
    getList() {
      course
        .getListCourse()
        .then((response) => {
          // 请求成功
          // response接口返回的数据
          // console.log(response)
          this.list = response.data.list
        })
    },
    resetData() {
      // 清空表单
      // 表单输入项数据清空
      this.courseQuery = {}

      // 查询所有讲师数据
      this.getList()
    }
  }
}
</script>
